111345123443 has 2 divisors, whose sum is σ = 111345123444. Its totient is φ = 111345123442.

The previous prime is 111345123401. The next prime is 111345123481. The reversal of 111345123443 is 344321543111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111345123443 - 2¹⁴ = 111345107059 is a prime.

It is not a weakly prime, because it can be changed into another prime (111345122443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55672561721 + 55672561722.

It is an arithmetic number, because the mean of its divisors is an integer number (55672561722).

Almost surely, 2^111345123443 is an apocalyptic number.

111345123443 is a deficient number, since it is larger than the sum of its proper divisors (1).

111345123443 is an equidigital number, since it uses as much as digits as its factorization.

111345123443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

Adding to 111345123443 its reverse (344321543111), we get a palindrome (455666666554).

The spelling of 111345123443 in words is "one hundred eleven billion, three hundred forty-five million, one hundred twenty-three thousand, four hundred forty-three".